CN101506024B

CN101506024B - Hydraulic motor for railway switches

Info

Publication number: CN101506024B
Application number: CN2007800318188A
Authority: CN
Inventors: 莫里奇奥·比亚吉奥蒂
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 2006-08-28
Filing date: 2007-07-17
Publication date: 2013-06-12
Anticipated expiration: 2027-07-17
Also published as: CN101506024A; CN102310872B; US8302915B2; ITMI20061647A1; CN102310872A; WO2008027662A1; US20090308986A1

Abstract

A control mechanism for a railroad switch machine, the mechanism including a hydraulic circuit operable to move a rail end point of a switch point assembly of the railroad switch machine, a pump to hydraulically operate the hydraulic circuit, and a motor to operate the pump, wherein the only electromechanical parts of the control mechanism are within the motor.

Description

The HM Hydraulic Motor that is used for goat

Technical field

The present invention relates to goat, specifically, relate to a kind of device that is used for controlling and drive the track end motion of point of switch point assemblies.

Background technology

Usually known, railway switch point assembly comprises two rail end point, these two rail end point have the track profile that assembly dwindles, thereby with can deflection and move between two diverse locations and be convenient to rail assembly and correctly aim at, provide the ideal track that passes switch point assemblies for rolling stock.But described switch point assemblies has two deflections or mobile rail end point, and they cooperate with one another and select to move between (alternative) position first and second.At the first chosen position, first of these shiftable track end points can be aimed at the first fixing stock rail so that all vehicles directly arrive on first group of trapped orbit by switch point.At the second chosen position, described the second shiftable track end points can be aimed at the second stock rail of fixing so that all vehicles advance on second group of trapped orbit, for example makes all Vehicular turns to by-track.The far-end of two deflectable tracks almost intersects near the position of described first group of trapped orbit bifurcated at second group of trapped orbit.

This device has been described in italian patent No.IT1246656.Independent of one another or the switch point that disconnects of the device described in this patent operation, and be not suitable for operating the problem of the switch point that interconnected type namely interconnects each other by cross bar.For example, the switch machine of interconnected type is shown in U.S. Patent No. 5,806, in 809,6,149,106 and 6,691,958.

In general switch point assemblies, two deflectable rail end point are moved by the bar from the relative end-boss of the unit that often is called as switch point machine.In the inside of switch point machine, those bars are typically connected to the device with linear reciprocating motion, and this device provides power by the motor unit that generally is placed into these track sidepieces.The prior art situation comprises the many switch point machine for the motion of railway separation point.This mechanism is arranged on described switch point usually, and they generally only are used to make the separation rail end point of described switch point assemblies to move.

This mechanism is used to make the deflectable rail end point of described switch point assemblies move or but the deflection V-arrangement point of the track switch assembly of removable point is moved.This mechanism is Mechatronic Systems.

Summary of the invention

The present invention is devoted to a kind of device of movement of the rail end point that is used for controlling and drive switch point assemblies.In order to reach this purpose, a kind of control mechanism for goat is disclosed.This mechanism has hydraulic circuit.The rail end point that this hydraulic circuit act as the switch point assemblies that makes goat moves.The pump of the described hydraulic circuit of hydraulic operation and the motor that operates described pump also are provided.Only electromechanical component of described control mechanism is in described motor.

In another exemplary embodiment, disclose and a kind ofly comprised hydraulic circuit, there is no electromechanical component and act as the mechanism that rail end point is moved, the pressure that wherein operates described hydraulic circuit is to provide the pump of power to provide by motor, described mechanism is used for goat, this switch machine has the switch point assemblies with rail end point, namely is used for the control mechanism that described rail end point is moved.

In another exemplary embodiment, the method for not using electromechanical component operation goat is disclosed, wherein said goat has switch point assemblies, and this switch point assemblies has rail end point.The method is included in fluent material is provided in enclosed transport, and said conveying chamber is communicated with actuator.Thereby also disclose and described liquid has been in make described fluent material flow through described conveying chamber under pressure.Thereby also disclosing with described fluent material comes actuated actuators that described rail end point is moved.

Accompanying drawing is described

With reference to the present invention who is illustrated in specific embodiment in described accompanying drawing and more specifically describes above concise and to the point description.Therefore it will be appreciated that these accompanying drawings have only described general embodiment of the present invention and be not considered to limit its scope, will specifically describe and explain the present invention in addition by using accompanying drawing, wherein:

Fig. 1 has described the top view of shunt; And

Fig. 2 description is used for the schematic diagram according to the exemplary embodiment of the hydraulic control system of switch point assemblies of the present invention.

The specific embodiment

With reference to these figure, exemplary embodiment of the present invention will be described.The below describes the present invention specific to pivot connector.Scope of the present invention is not limited to the pivot connector in switch machine.Exactly, the present invention can be combined with other moving-members of switch machine and be implemented.

The existing system of movement that is used for controlling and drive the rail end point of switch point assemblies is mainly dynamo-electric.The relay of these systems' use parts such as large electric currents, contactless switch, pressure switch etc., they are responsive especially to environment or peripheral situation such as but not limited to pressure, humidity and mechanical strees, and described situation is extreme in railway applications.Railway applications can be benefited from control system and actuator greatly, and they can provide the higher mean time between failures (MTBF) (MTBF) and can be carried out together with the device and the parts that are suitable for correctly working under the peripheral situation of very severe.

Fig. 1 has described the top view of shunt.When described switch point moves, each switch point 100,102 together with the track 104 that is connected thereto, 105 appropriate section around axle axle 107 pivotables for example.Yet, should be noted that with other elements that are shown in Fig. 1 and compare, the pivot radius of described track is relatively large, so the position of axle 107 is not shown to scale.Vertically move so that when its relevant switch point 100,102 shifted laterally, can see that described angle will change a little when control lever 110,111.The contiguous described switch point of motor mechanism 120 moves to operate them.Although be illustrated as being located at the outside of these tracks, in another exemplary embodiment, motor mechanism 120 can be positioned at described track.

Fig. 2 has described the schematic diagram according to the exemplary embodiment of the hydraulic control system of switch point assemblies of the present invention of being used for that can be positioned at motor mechanism 120.Hydraulic circuit 10 is to be provided by the pump 11 that suitable motor 12 drives.Motor 12 can be along cw and left-hand revolution operation.This pump can with pressure selection be input in the circuit A and B of described system.Pump 11 is connected with a pair of check valve 13,14.Transfer valve 15 can be connected pump 11 and/or disconnect so that the automatic or manual that starts respectively according to system of the present invention operates with hydraulic circuit 10.

Two main splits 16 of hydraulic circuit 10,17 give by a pair of two-way valve 19,20 actuator 40 energy supplies that are comprised of one or more hydraulic actuating cylinders 18, hydraulic actuating cylinder 18 is provided with the bypass circulation 21 that comprises bypass disc 25, wherein said bypass disc 25 purposes are to make one or more hydraulic actuating cylinders 18 (rear portion stage) during the counter motion of rail end point that lower resistance is provided, and also can be used to the oil that " cleaning " hydraulic actuating cylinder 18 self also changes in whole hydraulic circuit 10.

Two main splits 16 of hydraulic circuit 10,17 are connected by the 3rd branch 22, the change-over valve 23 that the 3rd branch 22 also is connected to bypass disc 25 is divided into two parts, quintafurcation 26, the quintafurcations 26 that bypass disc 25 further is connected to hydraulic circuit 10 are connected to this successively to check valve 13,14.The 4th branch 24 and the quintafurcation 26 of hydraulic circuit 10 are connected by maximum pressure valve 27.

In exemplary embodiment, one or two branch 16,17 of hydraulic circuit 10 is connected to and is suitable for operate actuator 41, two sub-loops 28,29 of 42, and wherein said actuator 41,42 is controlled the electric contactor of the motor 12 of driving pumps 11.Each sub-loop 28,29 comprises hydraulic actuating cylinder 30,31 and maximum pressure valve 32,33.Thereby hydraulic actuating cylinder 30,31 works and can make the transfer of pump motor 12 operation rail end point, then disconnects motor 12 when described rail end point has arrived at its final position.When not having to arrange the automatic remote management that can disconnect when needed motor 12, described rail end point needs sub-pipeline 28,29.

Also as described in Figure 1, the first branch 16 of hydraulic circuit 10 pushed described oil to by pump 11, and pump 11 is connected to described the first branch 16 by transfer valve 15.At first oil flow to bypass valve 25 and then flow to first sub-pipeline 29, fills up hydraulic actuating cylinder 30, and flow to the 4th branch 24, because change-over valve 23 was closed in this stage.

After regulation time-delay, when arriving its ultimate pressure, two-way valve 20 is opened and fluid is passed to master cylinder 18, therefore its piston is moved to its relative limit position.Very low by the load that described piston provides in this stage.When main hydraulic cylinder 18 is filled up fully, its piston has arrived at its end position, and then maximum pressure valve 33 is opened, and this maximum pressure valve 33 is characterised in that lower with respect to valve 27 ultimate pressures, and make the sub-pipeline 28 of described direction of flow second, begin hydraulic actuating cylinder 31 is filled up.

After the time-delay of regulation, when maximum pressure valve 27 arrived at its ultimate pressure, it was opened and allows described oil flow through the quintafurcation 26 of hydraulic circuit, so discharges the pressure of branch 24.In case finish, described system begins when being ready to the transfer next time of the described rail end point of box lunch needs again.

In the present invention, can be by long distance control cabin, facility and/or the 50 control motors 12 of standing.In order to reach this purpose, described long distance control cabin can and/or wired be communicated with wireless with described motor.The control of sending from described long distance facility can be that electronics triggers or manual triggers.Electronics triggers and means software or auto mat are determined to need starting in whether.

In another exemplary embodiment, the present invention can be counted as loop 10, and this loop 10 makes the enclosed transport 16,17 that is communicated with actuator 40 therein with fluent material.Thereby described fluent material is in and makes described liquid flow through described conveying chamber under pressure.Then described fluent material can start actuator 40 so that described rail end point moves.Thereby being communicated with described conveying chamber, motor 12 and pump 11 provide pressure so that described fluent material moves.Described fluent material is based on the oil of hydraulic pressure.The second actuator 41,42 that described conveying chamber 28,29 subset and being used for controlled motor 12 is communicated with.

Therefore, the invention provides a kind of system, this system be used for to control and has driven the movement of the rail end point of all hydraulic switch point assemblies, therefore makes electromechanical component and assembly, minimizes about the quantity of wire and power supply and management.Only dynamo-electric assembly or parts can be arranged in motor 12 and/or transfer valve 15.Described system can be by remote control or local control, therefore allow when fault or when needing repairing easily standby.At length, in exemplary embodiment of the present invention, described system provides manual operation function by the transfer valve of the described pump of bypass and its CD-ROM drive motor.And it can be equipped with two other subsystems, and this two sub-systems disconnects described pump motor when described actuator has arrived at its end position after described rail end point is by commutation.The present invention can also provide a kind of system for controlling and drive the rail end point of switch point assemblies, and this makes the load that offers train minimize between period of traction, even therefore reduce design constraint in order to guarantee the failure-free operation during the traction stage self.

Although the present invention is described, clearly can carry out many changes and modification for those skilled in the art in being considered to preferred embodiment now.Therefore, purpose is to the invention is not restricted to concrete n-lustrative embodiment but is explained in the whole spirit and scope of affiliated claim.

Claims

1. control mechanism that is used for goat, this control mechanism comprises:

A) hydraulic circuit, the rail end point that this hydraulic circuit act as the switch point assemblies that makes described goat moves;

B) pump, described pump utilize the described hydraulic circuit of hydraulic operation; And

Motor, described motor operated described pump;

Pressure valve, described pressure valve disconnect described motor when described rail end point has arrived at desired location,

Only electromechanical component of wherein said control mechanism is in described motor.

2. control mechanism as claimed in claim 1, also comprise transfer valve, with the described pump of bypass and motor.

3. control mechanism as claimed in claim 1, wherein said hydraulic circuit comprises the actuator that rail end point is moved.

4. control mechanism as claimed in claim 1, but wherein said motor cw and left-hand revolution operation.

5. control mechanism as claimed in claim 1, also comprise remote control room, facility and/or the station of controlling described motor.

6. control mechanism as claimed in claim 5, remote control room, facility and/or the station of wherein controlling described motor are to be connected in described motor with at least one in wired and wireless connections.

7. control mechanism as claimed in claim 1, also comprise actuator, and this actuator act as controls described motor; And sub-loop, to operate described actuator.

8. control mechanism as claimed in claim 7, wherein said sub-loop act as controls described motor.